The optical zoom ratio of a digital camera measures how much the lens can actually zoom in to make subjects appear closer. Optical zoom enlarges a picture while keeping the resolution and sharpness of the picture. Digital zoom crops a portion of the image and then enlarges it back to size. And due to this, image quality is reduced in comparison Optical Zoom. In the case of optical zoom, the glass elements inside the lens move to increase or decrease the focal length of the lens. Optical zoom was used when there was a requirement to zoom in while retaining the highest possible image quality. Despite recent advancements in zooming technology, it remains the case even today. Not sure. Apple's page says ".5x, 1x, 2x optical zoom options". If the optical zoom 2x is taking a 1x image and cropping, that doesn't sound very optical-ish zoom to me. But, we all know marketing trickery abounds in these phone launches. 4K 8MP Outdoor PTZ IP POE Camera with Pan Tilt 20x Optical Zoom & Human Vehicle Detection, Speed Dome Security Camera with 320ft IR Night Vision, Auto Tracking, 2-Way Audio(Compatible for Hikvision) 8MP Auto Tracking PTZ Camera with Smart Human/Vehicle Detection, Pan Tilt 18X Optical Zoom, 2-Way Talk, Auto Cruise,165ft EXIR Night Vision Deep dive: Camera zoom explained: How optical, digital, and hybrid zoom work Super Res Zoom vs optical zoom To start with, let’s highlight some of the differences between optical and Super Res Zoom. . COOLPIX P900 @ 357mm, ISO 100, 1/640, f/6.5. 4000mm equivalent. COOLPIX P900 @ 714mm, ISO 100, 1/1000, f/6.5. The shots from 24mm to 2000mm equivalent are with the optical zoom. The shot at 4000mm equivalent is with the camera’s digital zoom enabled. We’ll dig into the P900’s outlandish zoom range and other features like the pre-shooting 携帯電話には、端末のカメラのズームインなど、長年にわたって改善されてきたさまざまなコンポーネントがあります。 これは、携帯電話がその起源から実際に使用されてきたことはよく知られていますが、そのたびにますます洗練されてきています。 このテクノロジーについて話すとき、 Tässä puhelimessa on 2x optinen zoom, mutta 10x digitaalinen zoom. Zoomatun kuvan tarkkuus on huomattavasti pienempi. Se on digitaalisen zoomauksen ongelma. Vaikka optinen zoom suurentaa kuvanlaatua heikentämättä, digitaalinen zoom vähentää sitä. Ja mitä enemmän zoomaat, sitä huonompi kuvanlaatu heikkenee. Ce téléphone dispose d'un zoom optique 2x, mais d'un zoom numérique 10x. La photo agrandie a une résolution nettement inférieure. C’est le problème du zoom numérique. Alors que le zoom optique grossit sans perte de qualité d'image, le zoom numérique la réduit. Et plus vous zoomez, plus la qualité de l'image est mauvaise. Essentially, Galaxy S20 Super Resolution Zoom is a smart (improved) digital zoom. It improves the digital zoom in: Use information from other camera sensors. Use both pixel binning and cropping. Use some advanced algorithms (AI) to reduce the noise. Compared to the hybrid optical zoom, the super-resolution zoom is lossy.

hybrid zoom vs optical zoom